This world view is not falsifiable. Regardless of success you can say it was luck.
But I just don’t understand this. In my work we are constantly giving people chances to take on more responsibility, and often they don’t want to, or it doesn’t work out. Why would you expect that you could drop them in as CEO?
Are CEOs always the cause of success or failure? No. Are they good at avoiding blame? Yes. Are they also extremely skilled and competent people? Yes.